JH

J. Michael Havelka

📍 Follansbee, WV: #5 of 14 inventorsTop 40%
🗺 West Virginia: #1,108 of 3,425 inventorsTop 35%
Overall (All Time): #2,163,060 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7300586 pH stable activated carbon Robert G. Roodman, Jack Smiley, Robert A. Scherrer 2007-11-27
6946077 pH stable activated carbon Robert G. Roodman, Jack Smiley, Robert A. Scherrer 2005-09-20